package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public PageResult page(EmployeePageQueryDTO dto) {
        //开启分页
        PageHelper.startPage(dto.getPage(), dto.getPageSize());
        // 当前页的列表查询
        Page<Employee> page =employeeMapper.page(dto);
        //3. 组合，封装返回
        return new PageResult(page.getTotal(), page.getResult());

    }

    @Override
    public void add(EmployeeDTO dto) {
        // 创建的实体对象
        Employee employee=new Employee();
        // 拷贝参数到实体
        BeanUtils.copyProperties(dto,employee);
        employee.setPassword("123456");
        //给状态赋值
        employee.setStatus(1);
        /*employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());*/
        employeeMapper.insert(employee);
    }

    @Override
    public Employee getByid(Long id) {
        return employeeMapper.getById(id);
    }

    @Override
    public void update(EmployeeDTO dto) {
        //创建一个Employee对象
   Employee employee=new Employee();
   //使用BeanUtils的copyProperties方法将dto中的属性复制到employee中
   BeanUtils.copyProperties(dto,employee);
   //设置employee的更新时间
   employee.setUpdateTime(LocalDateTime.now());
   //使用employeeMapper的update方法更新employee到数据库中
   employeeMapper.update(employee);
    }

    @Override
    public void updateStatus(Integer status, Long id) {
        employeeMapper.updateStatus(status,id);
    }
}
